Feasability to build myself for old macOS versions like 10.14

[uwu-420]

Hi all, thanks for making opencv-python!

I read about the deprecation of macOS builds for old versions like macOS 10.14 e.g. here actions/runner-images#5583 but I wonder if it would be feasible to try to build the latest openCV for such an old macOS version myself or are there insurmountable obstacles that would make such an effort pointless? Thanks!

[asmorkalov]

The minimal OS version was increased, because the team cannot build/update environment with older OS version. In case if you already there and was able to install required version of Python and dependencies, you can built the package manually. I do not see significant problems with it. Just pay attention, that the build procedure looks for ffmpeg/qt/lapack/whatever in build environment. You may loose some features.